oracle 1z0-105 online test

Oracle Linux 6 Advanced System Administration

What students need to know about the 1z0-105 exam

  • Total 172 Questions & Answers

Question 1

Consider the Dtrace providers made available in Oracle Linux.
Which three providers are valid Oracle Linux Dtrace providers? (Choose three.)

  • A. dtrace
  • B. lockstat
  • C. kernel
  • D. syscall
  • E. fbt
  • F. io
  • G. sysinfo
Answer:

A B D

Explanation:
Reference: https://docs.oracle.com/cd/E37670_01/E50705/html/ol_diffs_dtrace.html

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Question 2

Examine the contents of /etc/mail/access:

This system is to be used as an MTA or mail gateway for the local LAN network address 192.168.1.0/24.
Which two actions allow this mail host to route email for the network?

  • A. Run sendmail again; and the updated file can be accessed automatically.
  • B. Add this line to /etc/mail/access:
  • C. Add this line to /etc/mail/access:
  • D. Add this line to /etc/mail/access:
  • E. Rebuild the access database file after the source files have been modified. Restarting the sendmail service automatically rebuilds the maps.
Answer:

D E

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Question 3

Which two statements are true about debugging OCFS2?

  • A. The o2image command copies OCFS2 file system data from the device to the specified image file.
  • B. The o2image command copies OCFS2 file system metadata from the device to the specified image file.
  • C. You must mount the debugfs file system to enable the use of the debugfs.ocfs2 command.
  • D. Trace bits has two possible statuses: allow and deny.
  • E. You must unmount all ocfs2 file systems to enable the use of the debugfs.ocfs2 command.
Answer:

B C

Explanation:
o2image copies the OCFS2 file system meta-data from the device to the specified image-file. This image file contains the file
system skeleton that includes the inodes, directory names and file names. It does not include any file data.
This image file can be useful to debug certain problems that are not reproducible otherwise. Like on-disk corruptions. It could
also be used to analyse the file system layout in an aging file system with an eye towards improving performance.
As the image-file contains a copy of all the meta-data blocks, it can be a large file. By default, it is created in a packed
format, in which all meta-data blocks are written back-to-back. With the -r option, the user could choose to have the file in the
raw (or sparse) format, in which the blocks are written to the same offset as they are on the device. debugfs.ocfs2
understands both formats.

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Question 4

Which two can be selected when using rescue mode in Oracle Linux? (Choose two.)

  • A. X server for the GUI rescue interface
  • B. Additional Network Interfaces
  • C. Additional Disk discovery
  • D. Keyboard Type
Answer:

B D

Explanation:
Reference: http://it-toolkit.blogspot.com/2015/09/boot-oracle-linux-rescue-mode.html

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Question 5

Which two parameters are valid networking modes for a Linux container (LXC)?

  • A. veth
  • B. bridged
  • C. nat
  • D. macvlan
  • E. routed
Answer:

B C

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Question 6

What are two ways to invoke the rescue procedure for Oracle Linux while booting from the installation media?

  • A. Press the Esc key on the Oracle Linux Boot Menu screen.
  • B. Press the Esc key on the grub loader menu.
  • C. selecting "Rescue Installed System" on the Oracle Linux Boot Menu screen.
  • D. selecting "Rescue Installed System" on the grub loader menu.
  • E. Press the Shift+Ctrl keys on the grub loader menu.
  • F. Press the Shift+Ctrl keys on the Oracle Linux Boot Menu screen.
Answer:

C F

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Question 7

Which two statements are true about container template scripts?

  • A. They must be Bourne Shell scripts.
  • B. Their name must start with 1xc-.
  • C. They must support the --arch option.
  • D. They must not be interactive.
  • E. They must install a Linux distribution.
Answer:

B E

Explanation:
Reference: https://docs.oracle.com/cd/E52668_01/E54669/html/ol7-about-containers.html

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Question 8

What statement describes the iSCSI client system's iSCSI database?

  • A. The client maintains a text formatted file, /etc/iscsi/iscsi.db.
  • B. The client can use either a local database in the form of a Berkeley DB formatted file in /etc/ iscsi or a distributed database in the form of Internet Storage Naming Service (iSNS) as its database. It is a decision for the System and Storage Administration team.
  • C. The client maintains a local database in the form of a directory tree structure in /var/lib/ iscsi.
  • D. The client maintains a local database in the form of a directory tree structure in /etc/iscsi/ db.
Answer:

A

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Question 9

Which two statements are true about recursive nameservers that are supported by Oracle Linux?
(Choose two.)

  • A. They may forward requests to authoritative name resolution requests.
  • B. They cache replies from previous name resolution requsts.
  • C. They may be authoritative.
  • D. They may be primary nameservers.
  • E. They may be secondary nameservers.
Answer:

A D

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Question 10

Which two actions are Linux containers best suited to perform? (Choose two.)

  • A. simplifying firewall setup
  • B. creating a lightweight virtualization environment
  • C. testing SELinux policy
  • D. controlling the resource usage of a set of applications
  • E. improving the performance of native applications
Answer:

B C

Explanation:
Reference: https://www.unixmen.com/docker-lightweight-virtualization-linux-containers/

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